and mo ##tu ##l de san jose near lake pete ##n it ##za became vassal ##s of their more powerful neighbor to the north . by the middle of the 5th century ti ##kal had a core territory of at least 25 kilometres ( 16 mi ) in every direction . around the 5th century an impressive system of fortifications consisting of ditch ##es and earth ##works was built along the northern periphery of ti ##kal ' s hint ##erland , joining up with the natural defenses provided by large areas of swamp ##land lying to the east and west of the city . additional fortifications were probably also built to the south . these defenses protected ti ##kal ' s core population and agricultural resources , en
and motul de san jose near lake peten itza became vassals of their more powerful neighbor to the north. by the middle of the 5th century tikal had a core territory of at least 25 kilometres ( 16 mi ) in every direction. around the 5th century an impressive system of fortifications consisting of ditches and earthworks was built along the northern periphery of tikal's hinterland, joining up with the natural defenses provided by large areas of swampland lying to the east and west of the city. additional fortifications were probably also built to the south. these defenses protected tikal's core population and agricultural resources, en